package ddd;

/**
 * @author dengzhiyuan
 * @version 1.0
 * @time 2021/5/24 17:54
 */
public class Vector {
    public Vector(long x, long y) {
        this.x = x;
        this.y = y;
    }

    public static final Vector ZERO = new Vector(0, 0);
    long x;
    long y;
}
